A display device includes a signal controller. A data driver is connected to the signal controller. A memory unit is connected to the signal controller. The memory unit stores data driver characteristic information corresponding to a manufacturer identification (ID) of each of a plurality of data drivers. The data driver transmits a manufacturer ID to the signal controller. The signal controller reads, from the memory unit, data driver characteristic information corresponding to the manufacturer ID received from the data driver, and the signal controller generates image data and a control signal based on the read data driver characteristic information.